Which to use
“lung” and “lux” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #46,871
- “lung” frequency rank
- #18,246
- “lux” frequency rank
- 65117
- confusion score
Side-by-Side Comparison
| Feature | lung | lux |
|---|---|---|
| Definition | Poumon. | Unité de mesure d’éclairement lumineux du Système international, définie comme lumen par mètre carré, dont le symbole est lx. |
Where the eye mixes lung and lux
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between lung and lux
A purely visual mix-up. lung (\lʌŋ\) and lux (\lyks\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 65117, derived from the frequency rank of both members and their visual similarity.
lung is recorded at frequency rank #46,871, classified as anoun, pronounced \lʌŋ\. lux is at rank #18,246, tagged as anoun, pronounced \lyks\.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 65117, this pair ranks #73,766 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of lung vs lux
Shared letters: lu. Private to "lung": gn. Private to "lux": x.
"lung" · 4 letters · shape CVCC · "lux" · 3 letters · shape CVC
Known mistypes of this pair
- lung ← llung · lnug · lugn · lungg · lunng · ulng
Frequently Asked Questions
Can "lung" and "lux" be used interchangeably?
Which is more common, "lung" or "lux"?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "lung" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "lux" - compare definitions side by side with the headword page. Word entry
- This pair ranks #73,766 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "lung" and "lux" also get mixed up with nearby pairs, the highest-scored neighbour is "longo vs lung". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #73,766 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.